18508980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{347}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 59867136

約数和(自身を除く): 41358156

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 127, 140, 210, 254, 347, 381, 420, 508, 635, 694, 762, 889, 1041, 1270, 1388, 1524, 1735, 1778, 1905, 2082, 2429, 2540, 2667, 3470, 3556, 3810, 4164, 4445, 4858, 5205, 5334, 6940, 7287, 7620, 8890, 9716, 10410, 10668, 12145, 13335, 14574, 17780, 20820, 24290, 26670, 29148, 36435, 44069, 48580, 53340, 72870, 88138, 132207, 145740, 176276, 220345, 264414, 308483, 440690, 528828, 616966, 661035, 881380, 925449, 1233932, 1322070, 1542415, 1850898, 2644140, 3084830, 3701796, 4627245, 6169660, 9254490, 18508980]

約数ペア:

[(1, 18508980), (2, 9254490), (3, 6169660), (4, 4627245), (5, 3701796), (6, 3084830), (7, 2644140), (10, 1850898), (12, 1542415), (14, 1322070), (15, 1233932), (20, 925449), (21, 881380), (28, 661035), (30, 616966), (35, 528828), (42, 440690), (60, 308483), (70, 264414), (84, 220345), (105, 176276), (127, 145740), (140, 132207), (210, 88138), (254, 72870), (347, 53340), (381, 48580), (420, 44069), (508, 36435), (635, 29148), (694, 26670), (762, 24290), (889, 20820), (1041, 17780), (1270, 14574), (1388, 13335), (1524, 12145), (1735, 10668), (1778, 10410), (1905, 9716), (2082, 8890), (2429, 7620), (2540, 7287), (2667, 6940), (3470, 5334), (3556, 5205), (3810, 4858), (4164, 4445)]